Creates or updates the image region by adding a rounded rectangular region.
Syntax
Parameters
- xform
- RasterRegionXForm object that LEADTOOLS uses to translate between display coordinates and image coordinates. If you specify null (Nothing in Visual Basic) in this parameter, the scalar fields default to 1, the offsets default to 0, and the view perspective defaults to the image view perspective.
- rc
- A LeadRect that specifies the bounding rectangle of the region.
- ellipse
- Specifies the width and height of the ellipse that describes the arc of the rounded corners.
- combineMode
- The action to take regarding the existing image region, if one is defined.
Example
This example will load an image, adds a round rectangle region to it, run the InvertCommand to show the affected area before saving the image back to disk.
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Public Sub AddRoundRectangleToRegionExample()
Dim codecs As RasterCodecs = New RasterCodecs()
Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRoundRectangleToRegion.bmp")
' Load the image
Dim image As RasterImage = codecs.Load(srcFileName)
' Add a round rectangle region
Dim xform As RasterRegionXForm = New RasterRegionXForm()
xform.ViewPerspective = RasterViewPerspective.TopLeft
xform.XOffset = 0
xform.YOffset = 0
xform.XScalarDenominator = 1
xform.XScalarNumerator = 1
xform.YScalarDenominator = 1
xform.YScalarNumerator = 1
Dim rc As LeadRect = New LeadRect(image.ImageWidth \ 4, image.ImageHeight \ 4, image.ImageWidth \ 3, image.ImageHeight \ 3)
Dim sz As LeadSize = New LeadSize(rc.Width \ 4, rc.Height \ 4)
image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set)
' Draw something on the image
Dim command As InvertCommand = New InvertCommand()
command.Run(image)
' Save the image
codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)
image.Dispose()
codecs.Dispose()
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class |
| C# | Copy Code |
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public void AddRoundRectangleToRegionExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRoundRectangleToRegion.bmp");
// Load the image
RasterImage image = codecs.Load(srcFileName);
// Add a round rectangle region
RasterRegionXForm xform = new RasterRegionXForm();
xform.ViewPerspective = RasterViewPerspective.TopLeft;
xform.XOffset = 0;
xform.YOffset = 0;
xform.XScalarDenominator = 1;
xform.XScalarNumerator = 1;
xform.YScalarDenominator = 1;
xform.YScalarNumerator = 1;
LeadRect rc = new LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3);
LeadSize sz = new LeadSize(rc.Width / 4, rc.Height / 4);
image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set);
// Draw something on the image
InvertCommand command = new InvertCommand();
command.Run(image);
// Save the image
codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
} |
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| SilverlightVB | Copy Code |
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Remarks
Requirements
Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7
See Also
